Hi, Ray !
Thanks for the informative reply !
I'm glad to hear that the auto-save function will eventually be implemented. And I, too, have noticed the multiplying of drafts in the draft folder. I hope they can fix that.
As far as my settings go, as I noted in my original post, the box about closing the window after saving was already unchecked. And I
think it was that way when I first started trying out the Horde interface at PolarisMail. Just as a test, though, I checked the box, then opened a test draft and saved it. The window closed. So, I went back in settings and unchecked it again (each time clicking 'save options') and opened a test draft and saved it. The draft window still closes and goes back to the inbox.
Oh, well. I guess it's just a bug/glitch I'll have to live with. (I do use the Squirrelmail interface there as well, so it's not a big deal if there are some 'issues' with Horde.)
Anyway, thanks again for your comments !!